Sex-ratio manipulation in the common opossum

  title={Sex-ratio manipulation in the common opossum},
  author={S N Austad and Mel E. Sunquist},
The idea that offspring sex ratio is affected by parental capacity for reproductive investment was first developed by Trivers and Willard1 and later elaborated by others2–6. According to this hypothesis, if the amount of parental investment7 differentially affects the expected reproductive success of offspring depending on offspring gender, then parents capable of exceptionally large investment should bias reproductive investment toward the sex affected most. For most polygynous mammals, male… CONTINUE READING

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